It's been a while since I posted or have had a chance to work on the jeep bed.
I noticed the bed panel in front of the wheel well cutout had a 1/8 inch hump in it. I put some water on the side of the bed to give the primer a shine, and it looked bad. Now I'm no body man, but I had to try something. So I asked the magic box sitting on the desk, and read about shrinking metal. The bed is made from 16 gauge steel, so it took a little more heat to get the metal to move. I would heat an area, hammer and dolly, and then cool with a wet rag.
It looks worse in the pictures than it really is the burnt paint makes it looks bad. I have a little more hammering on this side (it was warped pretty bad), but it's getting close. If I stopped right now, a skim coat of filler would be about 1/16 inch. I want to get it closer.
I learned from the other side, so this side turned out better. Some polyester filler primer (sprayable bondo) might be enough to smooth out this side.